/* strcspn.c - search string for character, string *//* Copyright 1992-1993 Wind River Systems, Inc. *//*modification history--------------------01c,25feb93,jdi  documentation cleanup for 5.1.01b,20sep92,smb  documentation additions01a,08jul92,smb  written and documented.*//*DESCRIPTIONINCLUDE FILES: string.hSEE ALSO: American National Standard X3.159-1989NOMANUAL*/#include "vxWorks.h"#include "string.h"/********************************************************************************* strcspn - return the string length up to the first character from a given set (ANSI)** This routine computes the length of the maximum initial segment of string* <s1> that consists entirely of characters not included in string <s2>.** INCLUDE FILES: string.h** RETURNS:* The length of the string segment.** SEE ALSO: strpbrk(), strspn()*/ size_t strcspn       (    const char * s1,	/* string to search */    const char * s2	/* set of characters to look for in <s1> */    )    {    const char *save;    const char *p;    char 	c1;    char 	c2;    for (save = s1 + 1; (c1 = *s1++) != EOS; )	/* search for EOS */	for (p = s2; (c2 = *p++) != EOS; )	/* search for first occurance */	    {	    if (c1 == c2)		return (s1 - save);	      	/* return index of substring */            }    return (s1 - save);    }